F - Mech Eng,Light,Heat,Weapons – 03 – D
Patent
F - Mech Eng,Light,Heat,Weapons
03
D
F03D 3/06 (2006.01)
Patent
CA 2534437
A Savonius vertical axis wind turbine rotor [and spoke for it] is versatile, simple and easy to construct and assemble, and efficient. The rotor includes a plurality of spokes, a plurality of vanes, and fasteners. Each spoke (which may be laser cut from aluminum plate) includes a hub having a substantially central opening, a plurality of at least partially arcuate ribs extending substantially radially outwardly from the hub with inner and outer surfaces, and a plurality of channels defined in at least one surface (preferably the outer surface) of each rib. The vanes are of sheet material (e. g. aluminum) generally conforming to an inner or outer surface of a rib and have openings operatively aligned with the channels. First fasteners pass through the openings into the channels and cooperate with second fasteners provided within the channels to securely hold the vanes to the ribs; the fasteners are preferably removable. The hub may be connected to a shaft of the rotor/turbine in a number of different ways. In a preferred way, each hub defines a clamp adapted to cooperate with a shaft so that the hub is securely affixed to the shaft. The clamp includes a substantially radial slot in the hub communicating with the central opening, first and second fastener receiving elements on opposite sides of the slot and fixed to the hub, and a fastener extending between the fastener receiving elements to narrow or close the slot. Preferably the at least partially curved vanes generally conform to the outer surfaces of the ribs, and the vanes may overlap the central opening so that there is spillover from one vane to the next when the rotor is rotated by wind.
Lowe-Wylde Gregory J. T.
Nunes Brendon
Vanderhye Robert A.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Nunes Brendon
Trintec Industries Inc.
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